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As Of Filer Filing For·On·As Docs:Size 2/23/22 Mdu Resources Group Inc. 10-K 12/31/21 161:38M |
Document/Exhibit Description Pages Size
1: 10-K Mdu Resources 2021 Form 10-K HTML 2.57M
2: EX-10.K Mdu Resources Long-Term Performance Incentive Plan HTML 71K
3: EX-10.M Mdu Resources Restrictive Stock Unit Award HTML 59K
Agreement
4: EX-10.W Mdu Resources 401 K Retirement Plan Amendment HTML 46K
01-01-22
5: EX-21 Mdu Resources Subsidiaries of Mdu Resources HTML 49K
6: EX-23 Mdu Resources Consent of Independent Accounting HTML 36K
Firm
10: EX-95 Mdu Resources Mine Safety Disclosures HTML 109K
7: EX-31.A Mdu Resources Certification of Chief Executive HTML 40K
Officer
8: EX-31.B Mdu Resources Certification of Chief Financial HTML 40K
Officer
9: EX-32 Mdu Resources Certification of CEO and CFO HTML 38K
16: R1 Cover page HTML 101K
17: R2 Audit Information HTML 42K
18: R3 Consolidated Statements of Income HTML 144K
19: R4 Consolidated Statements of Comprehensive Income HTML 96K
20: R5 Consolidated Balance Sheets HTML 206K
21: R6 Consolidated Statements of Equity HTML 112K
22: R7 Consolidated Statements of Cash Flows HTML 147K
23: R8 Basis of Presentation HTML 45K
24: R9 Accounting Policies HTML 147K
25: R10 Revenue from Contract with Customer HTML 215K
26: R11 Business Combinations HTML 45K
27: R12 Property, Plant, and Equipment HTML 85K
28: R13 Regulatory assets and liabilities HTML 90K
29: R14 Goodwill and other intangible assets HTML 81K
30: R15 Fair value measurements HTML 100K
31: R16 Debt HTML 99K
32: R17 Leases HTML 62K
33: R18 Asset retirement obligations HTML 51K
34: R19 Equity HTML 53K
35: R20 Stock-Based Compensation HTML 62K
36: R21 Accumulated other comprehensive loss HTML 75K
37: R22 Income Taxes HTML 120K
38: R23 Cash flow information HTML 56K
39: R24 Business segment data HTML 200K
40: R25 Employee benefit plans HTML 392K
41: R26 Jointly owned facilities HTML 66K
42: R27 Regulatory matters HTML 43K
43: R28 Commitments and contingencies HTML 67K
44: R29 Schedule I-Condensed Financial Information of HTML 120K
Registrant
45: R30 Basis of Presentation (Policies) HTML 51K
46: R31 Accounting Policies (Policies) HTML 130K
47: R32 Revenue from Contract with Customer (Policies) HTML 42K
48: R33 Accumulated other comprehensive loss (Policies) HTML 38K
49: R34 Business segment data (Policies) HTML 40K
50: R35 Commitment and Contingencies (Policies) HTML 40K
51: R36 Accounting Policies (Tables) HTML 105K
52: R37 Revenue from contracts with customers (Tables) HTML 208K
53: R38 Property, Plant, and Equipment (Tables) HTML 84K
54: R39 Regulatory assets and liabilities (Tables) HTML 135K
55: R40 Goodwill and other intangible assets (Tables) HTML 86K
56: R41 Fair value measurements (Tables) HTML 98K
57: R42 Debt (Tables) HTML 91K
58: R43 Leases (Tables) HTML 60K
59: R44 Asset Retirement Obligations (Tables) HTML 49K
60: R45 Equity (Tables) HTML 48K
61: R46 Stock-Based Compensation (Tables) HTML 62K
62: R47 Accumulated other comprehensive loss (Tables) HTML 76K
63: R48 Income Taxes (Tables) HTML 125K
64: R49 Cash flow information (Tables) HTML 56K
65: R50 Business segment data (Tables) HTML 192K
66: R51 Employee Benefit Plans (Tables) HTML 388K
67: R52 Jointly owned facilities (Tables) HTML 66K
68: R53 Commitment and Contingencies Disclosure (Tables) HTML 45K
69: R54 Accounting Policies - Receivables Past Due 90 Days HTML 39K
(Details 1)
70: R55 Accounting Policies - CECL Table (Details 2) HTML 67K
71: R56 Accounting Policies - Accrued Unbilled Revenue HTML 38K
(Details 3)
72: R57 Accounting Policies - Retainage (Details 4) HTML 45K
73: R58 Accounting Policies - Inventory (Details 5) HTML 54K
74: R59 Accounting Policies - PPE (Details 6) HTML 42K
75: R60 Accounting Policies - Impairment of Long-Lived HTML 39K
Assets (Details 7)
76: R61 Natural Gas Costs Recoverable or Refundable HTML 41K
through Rate Adjustments (Details 8)
77: R62 Accounting Policies - Goodwill (Details 9) HTML 39K
78: R63 Accounting Policies - Joint Ventures (Details 10) HTML 70K
79: R64 Accounting Policies - Derivatives (Details 11) HTML 41K
80: R65 Accounting Policies - EPS (Details 12) HTML 46K
81: R66 Accounting Policies - Income Taxes (Details 13) HTML 38K
82: R67 Disaggregation of revenue (Details) HTML 141K
83: R68 Contract balances (Details 2) HTML 59K
84: R69 Revenue from contracts with customers Remaining HTML 49K
performance obligations (Details 3)
85: R70 Business Combinations (Details) HTML 65K
86: R71 Business Combinations - Assets Acquired & HTML 68K
Liabilities Assumed (Details 2)
87: R72 Property, Plant, and Equipment (Details) HTML 121K
88: R73 Regulatory assets (Details) HTML 87K
89: R74 Regulatory liabilities (Details 2) HTML 68K
90: R75 Goodwill rollforward (Details) HTML 54K
91: R76 Other intangible assets (Details 2) HTML 55K
92: R77 Future amortization expense (Details 3) HTML 50K
93: R78 Fair value measurements insurance contracts HTML 42K
(Details)
94: R79 Available-for-sale securities (Details 2) HTML 53K
95: R80 Fair value measurements (Details 3) HTML 69K
96: R81 Fair value measurements (Details 5) HTML 47K
97: R82 Credit facilities (Details) HTML 66K
98: R83 Short-term Debt (Details 2) HTML 45K
99: R84 Long-term debt outstanding (Details 3) HTML 68K
100: R85 Long-term borrowings (Details 4) HTML 82K
101: R86 Schedule of debt maturities (Details 5) HTML 54K
102: R87 Lease costs (Details) HTML 53K
103: R88 Operating lease liabilities undiscounted cash HTML 56K
flows maturity schedule (Details 2)
104: R89 Lessor accounting (Details 3) HTML 41K
105: R90 Asset Retirement Obligations (Details) HTML 54K
106: R91 Common stock (Details) HTML 49K
107: R92 Common stock Common stock issuance (Details 2) HTML 53K
108: R93 Preferred Stock (Details 3) HTML 44K
109: R94 Stock based compensation plans (Details) HTML 46K
110: R95 Stock awards (Details 2) HTML 42K
111: R96 Restricted stock awards (Details 3) HTML 43K
112: R97 Performance share awards (Details 4) HTML 105K
113: R98 Accumulated other comprehensive loss (Details) HTML 70K
114: R99 Reclassification out of accumulated other HTML 72K
comprehensive loss (Details 2)
115: R100 Components of income before income taxes from HTML 47K
continuing operations (Details)
116: R101 Income tax expense (Benefit) (Details 2) HTML 64K
117: R102 Components of deferred tax assets and liabilities HTML 76K
(Details 3)
118: R103 Carryforwards (Details 4) HTML 46K
119: R104 Deferred tax reconciliation (Details 5) HTML 48K
120: R105 Income tax expense (Benefit) Statutory Rate Versus HTML 74K
Actual Rate (Details 6)
121: R106 Cash flow information (Details) HTML 54K
122: R107 Business segment data (Details) HTML 172K
123: R108 Change in benefit obligations and plan assets HTML 124K
(Details)
124: R109 Benefit obligations in excess of plan assets HTML 49K
(Details 2)
125: R110 Components of net periodic benefit cost (Details HTML 99K
3)
126: R111 Weighted average assumptions (Details 4) HTML 61K
127: R112 Investment Allocations (Details 5) HTML 55K
128: R113 Health care rate assumptions and cost trend rate HTML 47K
(Details 6)
129: R114 Estimated future benefit payments and subsidies HTML 78K
(Details 7)
130: R115 Fair value - pension (Details 8) HTML 99K
131: R116 Fair value - other postretirement (Details 9) HTML 94K
132: R117 Nonqualified Benefit Plans Benefit Obligations HTML 46K
(Details 10)
133: R118 Nonqualified Benefit Plans Components of NPBC HTML 53K
(Details 11)
134: R119 Nonqualified Benefit Plans Weighted Average HTML 45K
Assumptions (Details 12)
135: R120 Nonqualified Benefit Plans Future Benefit Payments HTML 53K
(Details 13)
136: R121 Nonqualified Benefit Plans Contributions (Details HTML 42K
14)
137: R122 Nonqualified Benefit Plans Investments (Details HTML 48K
15)
138: R123 Defined Contribution Benefit Plans Contribution HTML 40K
(Details 16)
139: R124 Multiemployer Plans Zones (Details 17) HTML 47K
140: R125 Multiemployer Plans Participation by Plan (Details HTML 130K
18)
141: R126 Multiemployer Plan Contributions (Details 19) HTML 44K
142: R127 Jointly owned facilities (Details) HTML 62K
143: R128 Mnpuc (Details) HTML 43K
144: R129 Ndpsc (Details 2) HTML 45K
145: R130 Sdpuc (Details 3) HTML 42K
146: R131 Wutc (Details 4) HTML 45K
147: R132 Ferc (Details 5) HTML 43K
148: R133 Litigation (Details) HTML 42K
149: R134 Enviromental matters (Details 2) HTML 70K
150: R135 Purchase commitments (Details 3) HTML 57K
151: R136 Guarantees (Details 4) HTML 62K
152: R137 Variable interest entities (Details 5) HTML 40K
153: R138 Condensed Statements of Income and Comprehensive HTML 57K
Income (Details)
154: R139 Condensed Balance Sheets (Details 2) HTML 183K
155: R140 Condensed Statements of Cash Flows (Details 3) HTML 79K
156: R141 Notes to Condensed Financial Statements (Details HTML 40K
4)
159: XML IDEA XML File -- Filing Summary XML 292K
157: XML XBRL Instance -- mdu-20211231_htm XML 6.68M
158: EXCEL IDEA Workbook of Financial Reports XLSX 226K
12: EX-101.CAL XBRL Calculations -- mdu-20211231_cal XML 247K
13: EX-101.DEF XBRL Definitions -- mdu-20211231_def XML 1.91M
14: EX-101.LAB XBRL Labels -- mdu-20211231_lab XML 3.18M
15: EX-101.PRE XBRL Presentations -- mdu-20211231_pre XML 2.26M
11: EX-101.SCH XBRL Schema -- mdu-20211231 XSD 332K
160: JSON XBRL Instance as JSON Data -- MetaLinks 750± 1.05M
161: ZIP XBRL Zipped Folder -- 0000067716-22-000012-xbrl Zip 6.22M
| Document |
| Subsidiaries | Jurisdiction
of Formation | ||||
Alaska Basic Industries, Inc. | Alaska | ||||
| Ames Sand & Gravel, Inc. | North Dakota | ||||
| Anchorage Sand and Gravel Company, Inc. | Alaska | ||||
| ARC Fabricators, L.L.C. | South Dakota | ||||
| Baldwin Contracting Company, Inc. | California | ||||
| Bell Electrical Contractors, Inc. | Missouri | ||||
| Bombard Electric, LLC | Nevada | ||||
| Bombard Mechanical, LLC | Nevada | ||||
| Capital Electric Construction Company, Inc. | Kansas | ||||
| Capital Electric Line Builders, Inc. | Kansas | ||||
| Cascade Natural Gas Corporation | Washington | ||||
| Centennial Energy Holdings, Inc. | Delaware | ||||
| Centennial Holdings Capital LLC | Delaware | ||||
| Central Oregon Redi-Mix, LLC | Oregon | ||||
| Concrete, Inc. | California | ||||
| Connolly-Pacific Co. | California | ||||
| D S S Company | California | ||||
| Desert Fire Holdings, Inc. | Nevada | ||||
| Desert Fire Protection, a Nevada Limited Partnership | Nevada | ||||
| Desert Fire Protection, Inc. | Nevada | ||||
| Desert Fire Protection, LLC | Nevada | ||||
| Duro Electric Company | Colorado | ||||
| E & ER Company | South Dakota | ||||
| Ellis & Eastern Company | South Dakota | ||||
| E.S.I., Inc. | Ohio | ||||
| Fairbanks Materials, Inc. | Alaska | ||||
| Fidelity Exploration & Production Company | Delaware | ||||
| Frebco, Inc. | Ohio | ||||
| FutureSource Capital Corp. | Delaware | ||||
| Granite City Ready Mix, Inc. | Minnesota | ||||
| Hawaiian Cement | Hawaii | ||||
| Intermountain Gas Company | Idaho | ||||
| International Line Builders, Inc. | Delaware | ||||
| InterSource Insurance Company | Vermont | ||||
| Jebro Incorporated | Iowa | ||||
| JTL Group, Inc. (Montana corporation) | Montana | ||||
| JTL Group, Inc. (Wyoming corporation) | Wyoming | ||||
| Kent’s Oil Service | California | ||||
| Knife River Corporation | Delaware | ||||
| Knife River Corporation - Mountain West | Delaware | ||||
| Knife River Corporation – North Central | Minnesota | ||||
| Knife River Corporation – Northwest | Oregon | ||||
| Knife River Corporation – South | Texas | ||||
| Knife River Dakota, Inc. | Delaware | ||||
| Knife River Hawaii, Inc. | Delaware | ||||
| Knife River Marine, Inc. | Delaware | ||||
| Knife River Midwest, LLC | Delaware | ||||
| KRC Holdings, Inc. | Delaware | ||||
| Lone Mountain Excavation & Utilities, LLC | Nevada | ||||
| Loy Clark Pipeline Co. | Oregon | ||||
| LTM, Incorporated | Oregon | ||||
| MDU Construction Services Group, Inc. | Delaware | ||||
| MDU Energy Capital, LLC | Delaware | ||||
| MDU Industrial Services, Inc. | Delaware | ||||
| MDU United Construction Solutions, Inc. | Delaware | ||||
| Montana-Dakota Utilities Co. | Delaware | ||||
| Nevada Solar Solutions, LLC | Delaware | ||||
| Northstar Materials, Inc. | Minnesota | ||||
| OEG, Inc. | Oregon | ||||
| PerLectric, Inc. | Virginia | ||||
| Prairie Cascade Energy Holdings, LLC | Delaware | ||||
| Prairie Intermountain Energy Holdings, LLC | Delaware | ||||
| Rail to Road, Inc. | South Dakota | ||||
| Rocky Mountain Contractors, Inc. | Montana | ||||
| Sweetman Const. Co. | South Dakota | ||||
| USI Industrial Services, Inc. | Delaware | ||||
| Wagner Group, Inc., The | Delaware | ||||
| Wagner-Smith Company, The | Ohio | ||||
| Wagner-Smith Equipment Co. | Delaware | ||||
| WBI Canadian Pipeline, Ltd. | Canada | ||||
| WBI Energy Midstream, LLC | Colorado | ||||
| WBI Energy Transmission, Inc. | Delaware | ||||
| WBI Energy, Inc. | Delaware | ||||
| WBI Holdings, Inc. | Delaware | ||||
| WHC, Ltd. | Hawaii | ||||
| This ‘10-K’ Filing | Date | Other Filings | ||
|---|---|---|---|---|
 | ||||
| Filed on: | 2/23/22 | |||
| For Period end: | 12/31/21 | 11-K, 4, 5, SD | ||
| List all Filings | ||||
As Of Filer Filing For·On·As Docs:Size Issuer Filing Agent 2/23/24 MDU Resources Group, Inc. S-8 2/23/24 5:92K Toppan Merrill/FA 2/22/24 MDU Resources Group, Inc. 10-K 12/31/23 161:31M 2/24/23 MDU Resources Group, Inc. 10-K 12/31/22 172:39M |